Breguet Double Tourbillon tournant
Working independently one from the other, the two tourbillons are coupled by means of differential gears and mounted on a rotating center plate effecting a complete revolution in twelve hours. The differentials transmit the mean rate of the two tourbillon regulators and the display of the time to the rotating center plate, allowing the simultaneous and tensionally equal rewinding of the twin barrels. The movement’s rate is therefore the mean rate of the two tourbillons, making its running rate twice as precise as a normal movement’s. The oscillators’ isochronism errors in the vertical positions are cancelled... more
27 décembre 2006
Case round, in 18-carat pink gold, with fluted caseband. Caseback hand-engraved on a rose engine in a wave pattern, with sapphire crystal. Diameter : 42 mm. Rounded horns welded to the case with screw pins securing the strap. Waveshaped chronograph pushpieces. Water-resistant to 100 meters. Dial black rhodium on 18-carat gold hand-engraved on a rose engine in a wave pattern. Individually numbered and signed Breguet. Chapter ring with applied Roman numerals and luminous dots... 
